Lines Matching defs:hdr

27 	struct snd_util_memhdr *hdr;
29 	hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
30 	if (hdr == NULL)
32 	hdr->size = memsize;
33 	mutex_init(&hdr->block_mutex);
34 	INIT_LIST_HEAD(&hdr->block);
36 	return hdr;
42 void snd_util_memhdr_free(struct snd_util_memhdr *hdr)
46 	if (!hdr)
49 	while ((p = hdr->block.next) != &hdr->block) {
53 	kfree(hdr);
60 __snd_util_mem_alloc(struct snd_util_memhdr *hdr, int size)
66 	if (snd_BUG_ON(!hdr || size <= 0))
73 	if (units > hdr->size)
78 	list_for_each(p, &hdr->block) {
84 	if (hdr->size - prev_offset < units)
88 	return __snd_util_memblk_new(hdr, units, p->prev);
97 __snd_util_memblk_new(struct snd_util_memhdr *hdr, unsigned int units,
102 	blk = kmalloc(sizeof(struct snd_util_memblk) + hdr->block_extra_size,
107 	if (prev == &hdr->block)
115 	hdr->nblocks++;
116 	hdr->used += units;
125 snd_util_mem_alloc(struct snd_util_memhdr *hdr, int size)
127 	guard(mutex)(&hdr->block_mutex);
128 	return __snd_util_mem_alloc(hdr, size);
137 __snd_util_mem_free(struct snd_util_memhdr *hdr, struct snd_util_memblk *blk)
140 	hdr->nblocks--;
141 	hdr->used -= blk->size;
148 int snd_util_mem_free(struct snd_util_memhdr *hdr, struct snd_util_memblk *blk)
150 	if (snd_BUG_ON(!hdr || !blk))
153 	guard(mutex)(&hdr->block_mutex);
154 	__snd_util_mem_free(hdr, blk);
161 int snd_util_mem_avail(struct snd_util_memhdr *hdr)
163 	guard(mutex)(&hdr->block_mutex);
164 	return hdr->size - hdr->used;